Answers

Subtract 20/18 from 15/36

1^st number: 15/36, 2^nd number: 1 2/18

15/36 - 20/18 is -25/36.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 18 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 36 × 1 = 36,
   15/36 = 15 × 1/36 × 1 = 15/36
3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
   20/18 = 20 × 2/18 × 2 = 40/36
4. Subtract the two like fractions:
   15/36 - 40/36 = 15 - 40/36 = -25/36

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